CVE-2026-109319 Grav Guestbook Plugin 0.5.0 and 0.5.1 Missing Authorization and CSRF in Moderation
Authenticated users without proper permissions or external attackers via CSRF can delete or approve Guestbook entries in Grav.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-109319?
CVE-2026-109319 is a medium-severity missing authorization vulnerability in getgrav grav-plugin-guestbook, published on 12 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Grav Guestbook plugin 0.5.0 and 0.5.1 contains missing authorization and cross-site request forgery vulnerabilities in Admin moderation actions delete, approve, and approveAll. Authenticated Admin users lacking the admin.guestbook permission, or external sites abusing a moderator's session via nonce-less GET requests, can delete or approve Guestbook entries.
Weakness: CWE-862
Which versions are affected by CVE-2026-109319?
How do I fix CVE-2026-109319?
No fix has been published for CVE-2026-109319 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-109319 being exploited?
There is no known exploitation of CVE-2026-109319 in the wild and no public exploit code.
Sources
Also known as GHSA-6xrw-24fx-4qcf, GHSA-wxr7-h5mm-c7mv.